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DASH video download seems corrupted #15641
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Carefully read new issue template and provide all requested information. |
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@dstftw I believe I have followed the template, can you tell me what is missing? |
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Complete verbose log of youtube-dl command used for downloading. |
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As explained, part of the problem is that DASH streams are ephemeral on YouTube, so I can't show you a verbose log of the DASH dump anymore. Should I try to recreate a fresh stream to cause the issue again? |
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That's not true. All video-only and audio-only videos are basically DASH, some are true segmented DASH. Here is the video still available even as segmented DASH: |
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@dstftw Hi, I've encountered this issue on another stream and have collected verbose logging: Trying to examine the resulting file with ffprobe shows odd results, and the file doesn't render in most video software: Note the duration as 9 minutes. The actual duration of the video is something like 1 hour. The individual components are also difficult to manipulate as well. Trying to reencode the f304.mp4 video source yields the afforementioned MOOV atom problems. Does this help? |
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Have the same issue, any progress? |
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Make sure you are using the latest version: run
youtube-dl --versionand ensure your version is 2018.02.11. If it's not, read this FAQ entry and update. Issues with outdated version will be rejected.Before submitting an issue make sure you have:
What is the purpose of your issue?
If the purpose of this issue is a bug report, site support request or you are not completely sure provide the full verbose output as follows:
Add the
-vflag to your command line you run youtube-dl with (youtube-dl -v <your command line>), copy the whole output and insert it here. It should look similar to one below (replace it with your log inserted between triple ```):Description of your issue, suggested solution and other information
Hi, thanks so much for the work on this great tool.
I was trying to download a video that YouTube had just archived from my live stream. Before YT reencodes these videos, they are available for a time as DASH videos instead (vp9 encoding takes much longer). I downloaded this video (which is no longer available in DASH), but merging AV with ffmpeg seemed to fail. Upon telling youtube-dl to just keep the separate tracks, I took a look at the video stream with ffmpeg:
Here you can see that ffmpeg thinks the video is only 5 seconds long (it's actually over an hour long), and that it sees a ton of duplicate MOOV atoms. I'm not 100% positive this is a problem with youtube-dl, because I can play this video track in MPC-HC, but I can't open it in my video editing software (Vegas 15) nor manipulate it correctly with ffmpeg. Any insight would be very much appreciated!